Example usage for javax.crypto.spec DESKeySpec DESKeySpec

Introduction

In this page you can find the example usage for javax.crypto.spec DESKeySpec DESKeySpec.

Prototype

public DESKeySpec(byte[] key) throws InvalidKeyException 

Source Link

Document

Creates a DESKeySpec object using the first 8 bytes in key as the key material for the DES key.

Usage

From source file:com.ikon.util.SecureStore.java

/**
 * DES decoder//from   w w w  . j  a v  a 2  s . com
 */
public static byte[] desDecode(String key, byte[] src)
        throws InvalidKeyException, UnsupportedEncodingException, NoSuchAlgorithmException,
        InvalidKeySpecException, NoSuchPaddingException, IllegalBlockSizeException, BadPaddingException {
    DESKeySpec keySpec = new DESKeySpec(key.getBytes("UTF8"));
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    SecretKey sKey = keyFactory.generateSecret(keySpec);

    Cipher cipher = Cipher.getInstance("DES"); // cipher is not thread safe
    cipher.init(Cipher.DECRYPT_MODE, sKey);
    byte[] dst = cipher.doFinal(src);

    return dst;
}

---

From source file:net.sf.hajdbc.codec.crypto.CipherCodecFactoryTest.java

@Before
public void before() throws Exception {
    File file = File.createTempFile("ha-jdbc", "keystore");

    SecretKeyFactory factory = SecretKeyFactory.getInstance(ALGORITHM);
    this.key = factory.generateSecret(new DESKeySpec(Base64.decodeBase64(KEY.getBytes())));
    KeyStore store = KeyStore.getInstance(CipherCodecFactory.Property.KEYSTORE_TYPE.defaultValue);
    store.load(null, null);/* ww w .j  a va  2s. c o  m*/
    store.setKeyEntry(CipherCodecFactory.Property.KEY_ALIAS.defaultValue, this.key, KEY_PASSWORD.toCharArray(),
            null);

    FileOutputStream out = new FileOutputStream(file);
    try {
        store.store(out, STORE_PASSWORD.toCharArray());
    } finally {
        Resources.close(out);
    }

    System.setProperty(CipherCodecFactory.Property.KEYSTORE_FILE.name, file.getPath());
    System.setProperty(CipherCodecFactory.Property.KEYSTORE_PASSWORD.name, STORE_PASSWORD);
    System.setProperty(CipherCodecFactory.Property.KEY_PASSWORD.name, KEY_PASSWORD);
}

---

From source file:org.mayocat.security.DefaultCipher.java

private String crypt(String input, Mode mode) throws EncryptionException {
    if (Strings.isNullOrEmpty(this.configuration.getEncryptionKey())) {
        throw new EncryptionException("Invalid or missing cookie encryption key in configuration file. "
                + "You MUST specify a key in order to support cookie authentication.");
    }/*from  w  ww . j  a  v  a2 s  .  co m*/

    try {
        byte[] in = input.getBytes();

        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        byte[] keyBytes = this.configuration.getEncryptionKey().getBytes("UTF-8");
        DESKeySpec desKeySpec = new DESKeySpec(keyBytes);
        SecretKey key = keyFactory.generateSecret(desKeySpec);

        javax.crypto.Cipher cipher = javax.crypto.Cipher.getInstance("DES/ECB/PKCS5Padding");
        IvParameterSpec spec = null;
        if (cipher.getParameters() != null) {
            spec = cipher.getParameters().getParameterSpec(IvParameterSpec.class);
        }

        switch (mode) {
        case CRYPT:
        default:
            if (spec != null) {
                cipher.init(javax.crypto.Cipher.ENCRYPT_MODE, key, spec);
            } else {
                cipher.init(javax.crypto.Cipher.ENCRYPT_MODE, key);
            }
            byte[] encrypted = cipher.doFinal(in);
            return new String(Base64.encodeBase64(encrypted));
        case DECRYPT:
            if (spec != null) {
                cipher.init(javax.crypto.Cipher.DECRYPT_MODE, key, spec);
            } else {
                cipher.init(javax.crypto.Cipher.DECRYPT_MODE, key);
            }
            byte[] decrypted = cipher.doFinal(Base64.decodeBase64(in));
            return new String(decrypted);
        }

    } catch (BadPaddingException e) {
        this.logger.warn("Bad padding when attempting to decipher cookies. Key changed ?");
        throw new EncryptionException(e);
    } catch (Exception e) {
        this.logger.error("Fail to perform cookie crypt or decrypt operation", e);
        throw new EncryptionException(e);
    }
}

---

From source file:club.jmint.crossing.specs.Security.java

public static String desEncrypt(String data, String key) throws CrossException {
    String ret = null;//from  w  ww  . ja va2  s .c om
    try {
        DESKeySpec desKey = new DESKeySpec(key.getBytes("UTF-8"));
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey securekey = keyFactory.generateSecret(desKey);

        Cipher cipher = Cipher.getInstance(CIPHER_DES_ALGORITHM);
        SecureRandom random = new SecureRandom();
        cipher.init(Cipher.ENCRYPT_MODE, securekey, random);
        byte[] results = cipher.doFinal(data.getBytes("UTF-8"));
        ret = Base64.encodeBase64String(results);
    } catch (Exception e) {
        CrossLog.printStackTrace(e);
        throw new CrossException(ErrorCode.COMMON_ERR_ENCRYPTION.getCode(),
                ErrorCode.COMMON_ERR_ENCRYPTION.getInfo());
    }
    return ret;
}

---

From source file:org.toobsframework.util.Crypto.java

protected Crypto() {
    try {/* w w  w. j a  v  a2s.c o  m*/
        DESKeySpec keySpec = new DESKeySpec(keyData);
        SecretKey key = SecretKeyFactory.getInstance(ALGORITHM).generateSecret(keySpec);
        initEncryptCipher(key);
        initDecryptCipher(key);
    } catch (InvalidKeyException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (InvalidKeySpecException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

---

From source file:com.glaf.core.security.SecurityUtils.java

/**
 * DES/*from w w  w . ja v  a 2s  .c  o  m*/
 * 
 * @param data
 *            
 * @param key
 *            ???8?
 * @return ?
 */
public static String decode(String key, String data) {
    if (data == null) {
        return null;
    }
    try {
        DESKeySpec dks = new DESKeySpec(key.getBytes());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        // key??8?
        Key secretKey = keyFactory.generateSecret(dks);
        Cipher cipher = Cipher.getInstance(ALGORITHM_DES);
        IvParameterSpec iv = new IvParameterSpec("12345678".getBytes());
        AlgorithmParameterSpec paramSpec = iv;
        cipher.init(Cipher.DECRYPT_MODE, secretKey, paramSpec);
        return new String(cipher.doFinal(hex2byte(data.getBytes())));
    } catch (Exception ex) {
        ex.printStackTrace();
        throw new SecurityException(ex);
    }
}

---

From source file:org.talend.commons.utils.PasswordEncryptUtil.java

private static SecretKey getSecretKeyUTF8() throws Exception {
    if (passwordKey == null) {
        byte rawKeyData[] = rawKey.getBytes(CHARSET);
        DESKeySpec dks = new DESKeySpec(rawKeyData);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); //$NON-NLS-1$
        passwordKey = keyFactory.generateSecret(dks);
    }//from  w  w  w  . jav a2 s. c  om
    return passwordKey;
}

---

From source file:org.jajim.utilidades.cifrado.Cifrador.java

/**
 * Constructor de la clase. Inicializa el cifrador.
 * <p>/*from w ww. jav a  2 s.  c o m*/
 * @throws ImposibleCifrarDescifrarException Si no se puede instanciar un ci frador adecuado.
 */
public Cifrador() throws ImposibleCifrarDescifrarException {

    try {
        // Inicializacin de la clave
        SecretKeyFactory skf = SecretKeyFactory.getInstance("DES");
        String clave = "cjliamve";
        DESKeySpec kspec = new DESKeySpec(clave.getBytes());
        sk = skf.generateSecret(kspec);
        // Inicializacin del cifrador
        cifrado = Cipher.getInstance("DES");
    } catch (NoSuchAlgorithmException | InvalidKeyException | InvalidKeySpecException
            | NoSuchPaddingException e) {
        // En caso de que se produzca un error se escribe en el fichero
        // de log y se lanza una excepcin
        ManejadorDeLogs mdl = ManejadorDeLogs.getManejadorDeLogs();
        mdl.escribir("No se puede crear un cifrador de DES");
        throw new ImposibleCifrarDescifrarException();
    }
}

---

From source file:com.sirius.utils.encrypt.DESEncryptor.java

private Key getKey(Object key) throws Exception {
    if (key instanceof String) {
        DESKeySpec dks = new DESKeySpec(((String) key).getBytes());
        SecretKeyFactory skf = SecretKeyFactory.getInstance(ALGORITHM, security_provider);
        return skf.generateSecret(dks);
    } else {//from w  w w. j  a va2 s  .  c  om
        throw new EncryptException("Invilid key.");
    }
}

---

From source file:org.yes.cart.shoppingcart.support.impl.AbstractCryptedTuplizerImpl.java

/**
 * Default Constructor.//from  ww  w .  j  a  v a 2  s .  com
 *
 * @param keyRingPassword      key ring password to use.
 * @param secretKeyFactoryName Secret Key Factory Name.
 * @param cipherName           Cipher name.
 */
public AbstractCryptedTuplizerImpl(final String keyRingPassword, final String secretKeyFactoryName,
        final String cipherName) {

    try {
        final DESKeySpec desKeySpec = new DESKeySpec(keyRingPassword.getBytes());

        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(secretKeyFactoryName);
        secretKey = keyFactory.generateSecret(desKeySpec);

        // Create Cipher
        desCipher = Cipher.getInstance(cipherName);
        desCipher.init(Cipher.ENCRYPT_MODE, secretKey);

        // create uncipher
        desUnCipher = Cipher.getInstance(cipherName);
        desUnCipher.init(Cipher.DECRYPT_MODE, secretKey);
    } catch (Exception ike) {
        LOG.error(ike.getMessage(), ike);
        throw new RuntimeException("Unable to load Cipher for CookieTuplizer", ike);
    }

}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• »